I was using railcraft-12.0.0-beta-5.jar on a forge catserver (Catserver CatServer-git-1468a63-Community.jar).

When I right clicked the admin world spike minecart, the server crashed. From that point onward, whenever I try to launch the server it crashes on load. Here's the log:
https://pastebin.com/YpgXVjaP

Updated the mod and seems to be working fine.

#1759

I am very sorry to report, but after all this bug still persists. The server does load now, but rightclicking the minecart still crashes it.

Now using railcraft-12.0.0.jar, same server.
https://pastebin.com/R1vYU0FV

This also crashed the client.

Using forge 14.23.5.2815 on server
Using forge 14.23.5.2835 on client.

Might be forge version?

duplicate of.#1808